Carriage-control mechanism.



C. SPIRO'.

GARBIAGB -GONTROL MBGHANISM.

,APPLIOATION FILED lAUG. 15, 1910.

Batented Mar. 28, 1911.

7 SHEETS-SHEET 1.

4 Il. .ill ll .3;

C. SPRO.

CARRIAGE CONTROL MEGHANISM.

` I APPLIGAI'IOI` PILE? AUG. 15, 1910.' Patented Mar. 28

7 'Simms-SHEET 2 C. SPIRO.

CARRIAGE CONTROL MEHANISM.

APPLIGATVION FILED AUG.15, 1910.

Patented Mar. 28, 1911.

` 'ISHBETs-SHBET a.

WIM/55555 C.A SPIR.

CARRIAGE CONTROL MPGHNISMl`v APPLIUATION FILED AUG.15, 1 910.

Patented Mar. 2s, 1911.

7- SHEETS-SHEET 4f c; s111110. CARRIAGE CONTROL MECHANISM.

,AQPLIOATION FILED AUG. 15, 1910.`

Patented Mal'. 28, 1911.

INPE/Vick v 7m/leg ,5,01 m.

v WITNESS/55 y 0.6mm). UAERIAGB CONTROL MEGHANISM.

.APPLIOATION FILED AUG. 15, 1910. Patent'ed 'Mar'. 28,

SHEETS-SHEET e,

tinrrnnsfrnrns PATENT oiiaioa CHARLES SPIRO, OF NEW YORK, N. Y.

O Specification of Letters Patent. l

CARRIAGE-CONTROL MECHANISIVI.

Application :Filed August 15, 1910. Serial No. 577,183.-

To all who/m, 'it mayconcerm.'

Be it known that I, CHARLES Srino, a. citizen of the United States, residing at New. York, county of New York, State of New Yorin-have invented certain new and useful Improvements in Carriage-Control Mechanism, of which the following is aspecitication, reference being had therein to the accompanying drawing. y

The invention disclosed in this application i'elates broadly to typen-uiting machines and specifically to the mechanisms of a typewriting machine which are particularly adapted for controlling the movement of the plat-en carriage.

The principal object of this invention is Itowprovide an escapement mechanism ofthe lallet anchor type in which the angle between the escapcinent dog` and holding dog may be varied in such manner as to change theA character of the escapement action. Another object of `this invention is to provide an escapement mechanism of the a typewriting machine; the mechanism comprising an escapementdog and a holding dog so arranged that the holding dog-may be entirely disengaged from the escapement wheel or circular rack when the escapementv dog is disengaged from the. circular rack, in such manner as to. permit'the carriage to run free from the escapem-ent mechanisms.

Another object of this invention is to y provide a total release key so constructed as to permit release of the carriageinechanisin from control of the escapement devices and to lockt-he printing mechanism from actuation when the'carriage is released from the escapement devices.

Another object o`f this invention is .to construct 'a total, release mechanism which cooperates with the escapement mechanism of the pallet anchor type in such `manner as to swingt-he holding dog of the escapement out of 'the path of the teeth on the escapement wheel or circular rack, when the escapement dog is disengaged from the controlling wheel or rack.

Another object of this invention is to construct a typewritingl machine with a removable Acarriage arranged in such manner that when the carriage'is removed an auto' matic retaining dog is thrown into engage inent with the rackteeth on-the spring drum shaft when the carriage bed is removed from the typewriting machine.

A further object of this invention -is to construct an escapement mechanism for a.A

Patented Mar. 28,1911.

to construct an escapeinent mechanism for a typewriting machine in which both the typewriter carriage andthe escapement rack are connected with the shaft of the spring drum which is housed in a permanent casing attached to the middle under portion of the typewriter top plate in such manner as to compactly arrangev the escapement actuating devices within`small compass.

Still other and further objects of this in veiition will in part be obvious and will in' part be pointed out in the specification which hereinafter follows by reference t o the accompanying drawings" inwhicli like numerals indicate like parts throughout the several figuresthereof, and the scope of the invention will be indicated by the appended claims. Y

Figure 1 is a view showing a longitudinal sectional elevation of a typewriting mal chine. Fig. 2 is a plan view showing a portion ofthe top plate in section and the carriage removed. Fig. 3 is a plan view showing detail construction of the carriage spring control. Fig. 4 is a plan view showing the escapemeiit mechanism in detail. Figl 4is a view showing the universal bar and s11blevers -in transverse elevation. Fig. 6 is a plan view showing the connection between the spacing bar and the escapement mecha nism. Fig. 7 is a view showing the connection between the spacing bar and the escapen ment mechanism in elevation. Fig. 8 is an elevational detail side view of the escapement dog actuator. Fig. 19 is an elevational detail end view of the escapement dog'actuator. Fig. 10 is a. detail plan view of the holding dog. Fig. 11Uis ya detail plan View of theescapement dog. Fig. 12 isa detail elevational view of the total release mechanism. Fig. 13-is adetail plan view of the total release mechanism. Fig. 14 is a'detail end elevational view of the total release mechanism. Fig. 15 is a detail elevational 3, 4 and 5, the typewriting machine disclosed .ranged to control the platen cl 'tabulatmg Work, and is operat.

ating link. Fig. 2O is a side elevational vie\v of the locking stop. Fig. 21 is a sectional if'iew ofthe adjustable cont-rolling springs for the universal bar.

Referring more particularly to Figs. 1, Q. 3, 4 and 5,-of the drawings, several pai oi' the vgeneral typewriting machine construction are'disclosed -which do nott'orm a saeciicpart of this invention, by applications for this application, and since these particular parts do not specifically cooperate with the carriage controlling mechanisms, they will be described in a general manner inthe specification hereinafter following.

Referring more specifically to Figs. l "l in the drawings of this application, cour prises a main'v frame which is composed of side members 1, that are-joined together at the front by a front barQ, and at the rear by a rear bar 4. Upright posts 5 and G, are formed integral with the side members 1, and support upon their upper ends Aa top plate 7, which is connected to the summit'- ing posts 5 and 6 by means of screws or any Well known method of interlocking metallic parts. Ribbon spools S and actuating cle-- vices 9 therefor, are carried upon the tor- Ward portion of the top plate 7, upon opposite sides ot the printing` point in a manner Well understood in the typewriter art. Type bars 10, are pivotally mounted Within a type bar segment 11, and are operatively connected with key levers 12, which terminate at their forward'ends in key caps 14. Type heads which are carried upon the type barslO, are adapted to be protected by lying within .the curved portion ot a front board 1G, thatis mounted in the main traine between front posts A platen carriage 1T, is adapted to supporta cylindrical platen 18, which is mounted forrrecii'nocatnn upon a carriage bed 19, by means of anti-tricthni balls Q0. Platen shitting device 91. arf.,- operatively connected with the supl'iortiu members for the cylindrical platen and vri platen shift keys (not shown) located at the side of the key board in such n'ianner' as in control the :shifting positions of the platen carriage. Tabulating mechanism4 Q2. is ar- "iago 'for 'ely conA nectedl with tabulating keys mechanism Q5, is carried upon the lett side of the platen carriage in a manner v.vell un derstood in typewriter art'.

Referring more particularly to Figs. 1.v

but are covered p atent co-pending 'with' 5 and 7, the carriage controlling mechanism comprises a carriage driving spring 26,- Which is secured within a circular housing 27, that bolted to the top plate 7 by means of stud screws Which pass through-openings 'I0 28, that are formed in lugs 29, on the sides ot the housing Q7. The carriage driving spring 26, is connected upon one end with a female member 30 of theGeneva escapement which enables the spring to be Wound or un- Wound by means oi' cooperation with a nia-le member 31 of the Geneva escapement, which is'fmounted upon a lug 32, in such manner as tobe accessible from the rear of t-he machine frame in order that it may be grasped and turned by means ot"` the thumb and finger.' The inner end of the carriage driving spring 2G, is connected with a driving shaft 34, which is journaled at its lower end in a bearing formed in the housing 2T, and at 'its upper end in a bearing formed in a cover plate :El l`he-up]^ er endot' the driving shaft El., carries tixedly mounted thereon a. driving' cog-lli, which' meshes with a longitudinal rack 37, that is xcdly mounted upon the under portion ot the carriage frame 17. The lower end of the driving shaft- 35, care ries a brake disk 38, Which is adapted for usev in connection with the tabulating devices, and is more-fullydescribed in an application for patent specifically relating to tabulating mechanism which is co-pending with this application. A ratchet. Wheel 39, is-riveted to the brake disk 38, in such manner as to be positively driven by the driving 100 .shai't B4'. An escai'ienient rack or Wheel 40,

is loosely mounted upon the driving shaft 34, and is adaptedto be driven by means of a ratchet dog 4l. which is held in engagement with the teeth on the ratchet Wheel 39, 105 by means of a light; leaf spring42, that is tixedly mounted upon the escapement wheel 4t?. The escapianent mechanism per Se, is of a type known as the' pallet anchor type, and comprises a holding dog 44, Whieh'is pivoted 110 if: a' lnuarket-depending from the top plate,

b v moans ot stud screws 45, and is constructed with downwardly depending arms in and 4.7, which are adapted to overliethe tail port-ion 4S ot' an escapement dog 49. 115 The downwardly depend-ing portion 4i'. carries an adjustable stop screw 50, which determines the degree ot angularitv Which is -norinallv maintained between the holding maintains the adjustable stop scrw 50 in i contar-t with the tail portion 48.of`the escapeincnt'dog An vesca'peme t 35, is. tisedly mounted upon a ui..

actuator ersal bar `56, and is adapted to Contact with the tail portion 4 8 of the escapement dog 19 when the universalxbar is actuated under the inthe l ence of the key levers 12, which are operai, tively connected with sub-levers 57. @sub-levers 57, are radially mounted uponv a The curved pivo wire 58, and are provided with downwardentensions 59, which increase in.

length in `accordance `with the distance the particular sub-lever is located from the mid-. i idle of the segment 11.

Referring particularly to Fig. 5, ity will be noted that thel universal bar is substantially a straight horizontal bar pivoted' in the machine frame as at 60. The arrangement and 1ctmst'ruction of thesub-levers and the uni- `coiled spring 61, is mounted upon an adjustment "screw 62, which is mounted in a por tion of the segment member 1l. The arrangement 'of parts is such that the tension upon the universal bar may be adjusted to change the touch of the finger keys or properly adjust the actuating parts.. In order that the escapement mechanism may be actuated by a space bar 64, which is not connected to any of the sub-levers 57, vertical links 65 and 66 `are connected to bracket members 67 and G8 carried by the universal bar 56, and are adapted to underlie space bar levers 69. The vertical links 65 and G6 are extended upward, andare also connectedwith ribbon actuating mechanisms, as is fully described in application for patent appertaining. particularly to. ribbon mecha nism., which application is co-pending with this application.

By referring particularly'to Figs. 1 and 2, the carriage bed 19, is normally mounted `upon the top plate 7', by means of stud screws which extend upwardthrough openings in the top plate 7, and are screwed into the carriage bed 19. lt will be noted that if the carriage b ed and platen carriage mounted thereupon, be removed from the top plate 7,. that som'e device -should be thrown 4into actuation which would vprevent 'the carriage driving spring from Vbeing thrown entirely free, because of the liability of the spring injuring the escapement members in its rapid movement to release its stored up power by unwinding.

'Referring particularlyto Fig. 2, a retaining dog 71, is pivotally mounted upon the top plate, and is adapted to engage the drivvring cog 36 in such manner as to prevent the rotation of the driving spring shaft 34. It will benoted that the retaining dog 71, is

'provided wit-ha cam face 72 at about its middle portion, in such manner that .when the carriage bed 19 is screwed into position on the top plate 7, .the edge of the carriage bed 1,9engages the cam face 472 and thus forces the retaining dog 71 gradually ,outward against the Atension of a coiled spring 74, until the retaining dog has entirely passed outside of the path of the teeth of vthe driving cog 36,' It will also be noted that immediately as the carriage bed is lifted from its position on the top'plate, the retaining Vdog 71 will be forced into' position between the teeth of the driving cog 36, by means of the tension of the coiled spring 74.

Referring more specifically to Figs. 1, 2,

and 12 to 2O inclusive,l the total release .mechanism will be described, vwhich com-- prises a release key 7 5, which is pivotally mounted upon a cross rod 7 (3, that is mounted in the carriage from 17, and carries upon its lower end a cross bar 77, which is notched upon `its lower edge to form a rack,

which is adapted to be engaged by a back spacing dog 7S (shown in Figs. 2 and 3.) A rocking lever 7S), is pivotally mounted in lugs 80, that are formed upon the exterior of the housing 27, and is adapted to bear' at its lower end upon an upright extension 81, of a yoke 82, which is pivotally mounted upon the bracket depending .from the top plate 7. A second upright 84, is formed on the other end of the yoke 82, and carries a release actuating dog S5, which is pivotally mounted upon the extension 84, by means of a stud screw 8G, and is normally retained in horizontal position by means of a stop pin 87, which normally rests against the top wall of an opening 88, formed in the release actuating dog 85.r The release actuating dog S5, is adapted to abut its nose against the downmxrdly depending arm 46 of 'the holding dog L14; The uprightexten 'sion 84 of the yoke 82, is provided upon its be swung into the path of an oscillating stop 92, that is carried by the universal bar 5K3. The pivoted locking sto'p carrier ,is provided with 'a rearward extension 94, which is adapted to be connected with a release key t not shown) by means of a vertical slotted link 4 It will be noted that the arrangement and construction of parts disclosed in Figs. 12 to 2O inclusive, are such that when the release key 7 is depressed to throw theholding dog 4.4 out of engagement with the 'escapement wheel 40, that the locking stop 91 is thrown in the path of the oscillating stop 92, thus tXedly locking the movement Aof the universal bar, and consequently substantially locking the printing -mechanisms ,and key levers.

Having thus described my invention what I desire to claim, is

l. In an escapement mechanism `for typewrit-ing machines the combination of a typewriter carriage, a carriage propelling spring, a driving shaft connected with said carriage propelling spring, means connectcarriage, an escapenient Wheel mounted upon .said driving shaft a. holding dog, an escapelbeing provided with depending arms Which are adapted to encompass a portion of said escapement dog, a universal bar ,anda dog actuator carried by said universal bar in such manner as to be adapted to strike a portion of said escapement dog when the universal bar is actuated. e

3. In aneseapement mechanism for typewritingmachines the combination of a movable carriage,` a carriage propelling spring, a driving shaft operatively connected with Said propelling spring and with said movable carriage` a holding dog, an escapement cog, said holding dog being provided with depending arms adapted to encompass a portion of said escapement dog, an adjustable stop member carried by one of said depending' arms, a rocking universal bar, a dog actuator carried by said universal bar in such manner as to contact with a portion of said escapement dog when thev universal bar is rocked. i

4. An escapement mechanism for type- Writing-machines comprising a movable carriage. a carriage propelling spring, adriving shaft having' its axis substantia'lly in a vertical' position, means connecting` said driving shaft ivith said movable carriage, an escapement rack mounted upon said driving shaft, a holding dog. an escapement dog`r pivotmeans upon which said bidding-dog and said escapement dog are independently mounted, andadjustable 1vieans carried by one ot said dogs for cl'langing the angular relationship'bet-Ween the engaging faces ot said dogs. y l

5. 'An escapemont mechanism for typeivriting machines comprising a machinel frame, a movable carriage recipi'ocally.

mounted upon said machine frame, a driving spring. a driving shaft operatively connected with said driving' spring and having its axis substantially vertical and in a plane substantially', bisecting machine :trame from front Ito rear, means connecting said ing said driving shaft with said typewriter an escapement rack mounted upon said Vdriving shaft, ai'holding dog, an escapement dov, said holding dog being` mounted independently of said escapement dog in such manner that said holding dog may be removed from the pathot said escapement rack independently 'ot the movement of said escapement dog, and means for actuating said dogs. substantially as described.

6. An escapement mechanism for typeuf'ritingmachines comprising a machinev driving shaft with said movable carriage,

trame, a top plate in said machine frame, a

Amovablccarriage mounted for reciprocal movement upon said top plate', a driving spring. a driving shaft operatively connected with Said driving spring and having its axis substantially7 vertical, a rack and pinion connection between said driving shaftand said movable carriage, an'escapement rack mounted upon said driving shaft, a holding dog, an escapement dog, and means for actuating said dogs. said driving spring, said driving sha` t, said escapement rack and said dogs all being carried by said top plate, substantiallyas described.

'7. An escapement mechanism for a typewriter carriage including a movable carriagc, a propelling spring nected with said movable carriage, an escapement rack. controlling dogs adapted to engage said escapement rack to controlthe movement ot' said carriage, means for actuating said controlling dogs, said actuating means including sub-levers radially mounted upon a curved pivot rod, key levers,'con

nections between said key levers and said sublevers, and a horizontal pivotally mounted universal bar arranged in the path of a portion ot' said sub-levers between the pivots v ot' the sub-levers and their c'onnections'to thel key levers, substantially as described.

8. ln a typewriting machine the combination oit' a movable carriage, a carriage driving spring, an oseapement mechanism of the pallet anchor type for controlling the letter spacing movement ot said movable carriage, said escapement mechanism including a `holding dog, an escapement dog, a finger key mounted upon said carriage, a'sivingigg bar operatively connected -With said-fingerkey, and means mounted upon the machine' Y'tramo and operativelv connected With said swinging bar and said'escapcment mechania-m in such manner that said holding dog is removed 'from the pathof said escapement mechanism when said finger key isderesi-nd.

S). ln a typewriting machine the combination of a machine frame, a carriage bed removably mounted onsaid machine frame, a,

yplaten carriage reciprocally mounted'upon said carriage bed. a driving spring, .a driving shaft operatively connected with said operatively conilo machine frame, a ebene holding member driving spring, a. driving cog member een seid removable'carriage bed is removed from l0 ried upon Said driving shaft, a rack carried said machine frame. by said platen carriage and adapted 'to co In testimony whereolax my signature A operate with said driving cog member when l in presence offtwo Witnesses.

said carriage bed` is in position upon said CHARLES SPIR@ WVtnesseszv. i' f y l EDWD, E. JONES, FRANK THoRLrN.

pvotally mounted upon said machine frame, and means for eausin said detenta hoiding member to engagesaid riving oog when 

